Window sash construction



Sept. 24, 1935. M. ESSER WINDOW SASH CONSTRUCTION Filed July 21, 1953 Patented Sept. 24, 1935 UNITED STATES WINDOW SASH CONSTRUCTION Martin Esser, Cleveland, Ohio, assignor to John Harsch Bronze Foundry 00., Cleveland, Ohio, a

corporation of Ohio Application July 21, 1933, Serial No. 681,490

6 Claims.

This invention relates broadly to window casementsand more specifically to improvements in the construction of metal sash and easements of the pivotally supported form commercially known as the projection type.

One of the objects of this invention is to construct a swinging or oscillating type sash which is formed to effect the continuous engagement of the abutting closure ledges of the sash and frame, and further, which is formed to permit the ready separation of the sealing or weather resisting members of the casement. In the projection type of window heretofore in use it has been customary to arrange the closure flanges of the sash upon the opposite sides thereof, that is, the top and bottom flanges were disposed respectively for abutting closureagainst the inner side and outer faces of the frames. Such structure caused an opening or gap between the frame and one of the sash flanges when the thrust of the locking clamp was applied since but one flange was arranged to abut the frame member whenthe thrust was applied. In the present invention the closure flanges are disposed only upon the outer surface of the sash and the frame rails engageable therewith are arranged to receive the sameupon application of the window locking and clamping mechanism. It will thus be seen'that a uniform continuous thrust is applied upon the abutting surfaces of the frame and that such abutting engagement will preclude the admission of rain through the contacting surfaces of the sash and the frame.

Another object of the invention is to provide a window casement in which the frame member is constructed to overlap and form a water shed for the sash structure when the window is adjusted in its closed position.

Another object of the invention is to provide a plurality of abutting sealing ledges which are disposed adjacent the inner face of the sash so that the thrust effected by the clamping action of the window lock will cause a uniform pressure about the marginal edges of the sash. V

Another object of the invention is to provide a window casement frame and sash therefor which is durable of construction, relatively light in weight and economic of manufacture.

Other objects more or less ancillary of the fore going and the manner in which all the various objects are realized will appear from the following description, which, considered in connection with the accompanying drawing, sets forth the preferred embodiment of the invention.

In the drawing wherein the preferred embodiment is illustrated- Figure 1 is a vertical section through a window opening showing the upper rail of a casement window and the sill therefor in section.

Figure -2 is a fragmentary elevational View of the casement window shown in Figure 1.

Figure 3 is a detail view in section shown upon an enlarged scale of the window frame and sash, the section being taken on a plane indicated, by the line 3-3 in Figure 2.

Figure 4 is a similar sectional view, the sash illustrated therein being shown in its initial adjusted position.

Figure 5 is a transverse sectional view of the casement sill and lower portion of the sash.

As shown in Figure 1 the window casement comprises side rails ID, a top rail II and sill member l2. In the specific embodiment shown herein the casement or frame and the sash are formed from extruded metal, the side rails being of substantially channular form while the sill and top rails are generally angular. The upper rail .II is constructed with a rib l3 adjacent the marginal edge of the inner face of' the depending flange thereof and a rib [4 adjacent the inner edge of the upper flange. The inner face of the rib I4 is arcuate to provide a clearance for the upper flange of the sash during the oscillatory adjusted movement thereof. The outer face of the rib is beveled for. engagement with a flange or web I5 formed in the window sash H5. The lower edge of the rib I3 is also beveled for abutting engagement with a flange I1 formed in the outer face of the sash I6. As shown in Figure 3 the depending leg [8 of the basement is disposed to overlie the sash when the window is oscillated into its closed position.

The lower rail of the sash I6 embodies a depending flange l9 which overlaps the inner face of the sill member l2 of the window casing. The

upper flange 20 of the easement is formed for 40 abutting engagement with the outer flange 2| of the sash 16;

The form of the easement window herein illustrated is of the type in which the upper portion of the sash is guidedupon a pivotal support -*mounted in the side rails in of the window frame, the'lower portion of the'sash being mounted for arcuate oscillated adjustment inwardly upon pivotally supported links 2 2. The lock for the window may be of anyof the conventional forms such as the clamp 23 herein illustrated which constitutes a fulcrumed cam engageable with a pin supported by the frame. The function of such clamp, in addition to sustaining the window in its closed position, is to provide a clamping mechanism capable of effecting sufficient draft to cause the sash to be compressively held against the casement frame.

When the window is drawn to its closed position wherein the web l5 engages the rib l4 and the flange l1 engages the rib IS a double weather resisting seal is effected in which both of the engaging or sealing flanges l5 and the abutting faces are disposed in the plane of thrust effected by the effort of the window locking clamp. Moreover, since the sash is constructed for closure upon the inner face of the window the flange l8 overlies the joint between the frame and the sash and thus forms a water shed therefor. The lower portion of the window sash l6 maybe provided with a molding strip 24 for the retention of the glass within the window sash and, as illustrated in Figure 4, the moulding may be formed to overlie the joint between the flange 20 and the sash rail 2! in order to prevent water from flowing through the joint between the frame and the sash.

Although the foregoing description is necessarily of a detailed character, in order that the invention may be completely set forth, it is to be understood that the specific terminology is not intended to be restrictive or confining, and that various rearrangements of parts and modifications of structural detail may be resorted to without departing from the scope or spirit of the invention as herein claimed.

I claim:

1. A window comprising a frame, side rails, a

frame top rail, spaced parallel ribs formed in said top rail and having sealing surfaces lying in an upwardly inclined plane, a sash pivotally and reciprocably mounted upon said side rails and having an upper rail coacting with said top rail to form a complete sealed frame member when the sash is closed, flanges in the upper rail of said sash having upwardly inclined sealing surfaces disposed for abutting engagement with the sealing surfaces of said ribs when the sash is oscillated into its closed position and a depending flange in said frame top rail disposed to overlie the abutting surfaces of the outer engaging rib and flange, said frame top rail being formed with an arcuate groove in the face thereof to permit oscillatory movement of the sash.

2. A window frame comprising frame side rails,

a frame top rail connected thereto and having an arcuate groove in the face thereof to permit the oscillatory movement of the sash and a pair of spaced parallel ribs having upwardly beveled sealing surfaces, 9. sash reciprocably and oscillatively mounted upon said frame side rails, upwardly 1nclined flanges in the upper rail of said sash and disposed for intimate sealing engagement with the beveled surfaces of said ribs when the sash is adjusted to its closed position.

3. A window comprising frame side rails, a frame top rail connected thereto and having an arcuate groove in the face thereof to permit oscillatory movement of the sash, ribs formed in said top rail and having reversely beveled sealing surfaces lying in an upwardly inclined plane, a sash pivotally and reciprocably mounted upon said side rails and having an upper rail coacting with said top rail to form a complete sealed frame member when the sash is closed, flanges in the upper rail of said sash and having sealing surfaces disposed for abutting engagement with the sealing surfaces of said ribs when the sash is oscillated into its closed position, and means for drawing the upper sash rail into intimate engagement with the frame top rail when the sash is adjusted in its closed position.

4. A window comprising a frame, side rails therefor, a top rail connected to the side rails and having an arcuate groove in the face thereof to permit oscillatory movement of the sash, a sill member, a sash pivotally mounted upon said side rails and having an upper rail coacting with said top rail to form a complete sealed frame member when the sash is closed, a pair of ribs formed in the said frame top rail and having reversely beveled sealing surfaces lying in an upwardly inclined plane, a pair of flanges in the upper rail of the sash having sealing surfaces complemental to the sealing surfaces of said ribs, said flanges being disposed for flush surface-abutting engagement with said ribs when the sash is closed, a flange depending from the lower rail of the sash and arranged to overlap the sill member of the frame when the sash is closed and a second flange extending upwardly from the sill and disposed for abutting engagement with the lower rail of the sash when the Window sash is closed.

5. In window construction, frame side rails, a frame top rail, a sash pivotally and reciprocably mounted on said side rails and having an upper rail coacting with said top rail to form a complete sealed frame member when the sash is closed, said frame top rail and the upper rail of said sash being substantially angle-shaped in cross section, the inner surface of said top rail having inner and outer spaced parallel ribs formed thereon, said outer rib having an upwardly beveled sealing surface and said inner rib having a reversely beveled sealing surface also lying in an upwardly inclined plane, said upper sash rail being formed with inner and outer flanges having sealing surfaces complemental to the surfaces of said ribs, and a flange depending below the outer rib of said frame top rail and forming a vertical continuation of the beveled sealing surface of said outer rib.

6. In window construction, frame side rails, a frame top rail, 2. sash pivotally and reciprocably mounted on said side rails and having an upper rail coacting with said top rail to form a complete sealed frame member when the sash is closed, said frame top rail and the upper rail of said sash being substantially angle-shape in cross section, the inner surface of said top rail having spaced parallel inner and outer ribs formed thereon with reversely beveled sealing surfaces lying in an upwardly inclined plane, the inner face of said upper sash rail having a web projecting inwardly and upwardly therefrom with a sealing surface complemental to the sealing surface of the inner rib and a rib in spaced relation to said web having a beveled surface adapted to fit flush against the face of the outer'rib and together with the Web and said inner and outer ribs form a double-sealing means with downwardly and outwardly deflecting surfaces.

MARTIN ESSER. 

